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- Log ----------------------------------------------------------------- commit 402c0097ec47b82437296507bc2c5118b8cf9401 Author: Arne Fitzenreiter arne_f@ipfire.org Date: Sat Oct 4 14:18:16 2014 +0200

P2PBLOCK: IPP2P must run before CONNTRACK

and can only used for blocking, not for accept conenections bacause connections must already established for detecting protocol types.

-----------------------------------------------------------------------

Summary of changes: config/firewall/rules.pl | 16 +++------------- src/initscripts/init.d/firewall | 5 +++++ 2 files changed, 8 insertions(+), 13 deletions(-)

Difference in files: diff --git a/config/firewall/rules.pl b/config/firewall/rules.pl index 4d70382..58cc439 100755 --- a/config/firewall/rules.pl +++ b/config/firewall/rules.pl @@ -554,29 +554,19 @@ sub time_convert_to_minutes { }

sub p2pblock { - my $search_action; - my $target; - - if ($fwdfwsettings{"POLICY"} eq "MODE1") { - $search_action = "on"; - $target = "ACCEPT"; - } else { - $search_action = "off"; - $target = "DROP"; - } - open(FILE, "<$p2pfile") or die "Unable to read $p2pfile"; my @protocols = (); foreach my $p2pentry (<FILE>) { my @p2pline = split(/;/, $p2pentry); - next unless ($p2pline[2] eq $search_action); + next unless ($p2pline[2] eq "off";

push(@protocols, "--$p2pline[1]"); } close(FILE);

if (@protocols) { - run("$IPTABLES -A FORWARDFW -m ipp2p @protocols -j $target"); + run("$IPTABLES -F P2PBLOCK"); + run("$IPTABLES -A P2PBLOCK -m ipp2p @protocols -j DROP"); } }

diff --git a/src/initscripts/init.d/firewall b/src/initscripts/init.d/firewall index 66ca432..9620c80 100644 --- a/src/initscripts/init.d/firewall +++ b/src/initscripts/init.d/firewall @@ -84,6 +84,11 @@ iptables_init() { iptables -A INPUT -p tcp -j BADTCP iptables -A FORWARD -p tcp -j BADTCP

+ # P2P Block (must before connection tracking) + iptables -N P2PBLOCK + iptables -A INPUT -p tcp -j P2PBLOCK + iptables -A FORWARD -p tcp -j P2PBLOCK + # Connection tracking chain iptables -N CONNTRACK iptables -A CONNTRACK -m conntrack --ctstate ESTABLISHED,RELATED -j ACCEPT

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